• Load capacity of up to 300 kg/660 lb. • Made of high-quality materials, durable and sturdy. • Standard size of 11 mm x 22 mm. • 360° rotation without scratches, floor protection. • Made of shock-absorbing polyurethane. • Silent and smooth gliding in your home and office. • Suitable for most chairs and hard floors like parquet, laminate, tiles, and vinyl. • Tool-free installation, done manually in 5 minutes.